Spark Noise in 1999 S-10 V6

[MolaKule]

I have had some spark noise in my radio for quite some time and knowing that this distributor cap design has had a history of "tracking," I replaced both the cap and rotor but there was still some spark noise but at a lower level.

The fix was to place a snap-on ferrite, RF choke on the the small, wrapped three-wire bundle that comes from the Spark Amplifier Module.

I hope this may help those with spark noise in older vehicles.

 

[Kira]

A friend had an '05 S-10 with a V6 (shortened V8, he said).
The distributor cap was full of tracking (changed it with the plugs) but the radio sounded clear.
More frame rust that I'd ever seen before.

 

[maxdustington]

Originally Posted by Kira
A friend had an '05 S-10 with a V6 (shortened V8, he said).
The old GM 4.3 V8 is a SBC with one row of cylinders cut off. That's why it was offered in cars and trucks that also had an SBC available and why there are so many S-10 V8 swaps.

 

[Garak]

Nice idea. I've seen RF chokes used before, but not specifically there, which is probably a good place to be dealing with it, nearer the source!

 

[DoubleWasp]

I shall keep this info in memory. Good stuff!